Typically dark brown or black, pavement ants feature a pair of spines along their back and groves on the head and thorax. They are small with an average size range of 2.5 to 4 mm. They are capable of building large nests with up to 30,000 individuals, and each colony features the standard ant class system of workers, drones and a queens. The drones and young queens, both of which feature wings, mate in a flying swarm.
These ants feed on small seeds, grease and some other insects. They are strongly attracted to sweets and fruits. Studies have shown that pavement ants will forage as far as 30 feet away from their nests for food, and they leave behind pheromone trails so that other workers can follow.